Laboratoriski 8 - 5 SP

#include <stdio.h>
#include <ctype.h>
#define MAX 1000

int i;

void letterFrequency (char *text, char letter){
    int count;
    float sum=0,BIG=0,small=0;

        if (isupper(letter)){
            letter = tolower(letter);
        }

        for (count=0;count<i;count++){
            //if (isalpha(*(text+count))){
                sum++;

           // }

           if (*(text+count)==letter){
            small++;
           }
           if (*(text+count)==letter-32){
            BIG++;
           }
        }


    printf("%c -> %.3f%%\n",letter,small/sum*100);
    printf("%c -> %.3f%%",letter-32,BIG/sum*100);


}

int main(){
    char niza[MAX];
    char c;
    int n,count;

    while ((c=getchar())!= '\n'){
            niza[i] = c;
            i++;
        }

    scanf("%c",&c);

    letterFrequency(niza,c);
    return 0;
}